journal article·2023-01-13

Alkoxy Substitution on Asymmetric Conjugated Molecule Enabling over 18% Efficiency in Ternary Organic Solar Cells by Reducing Nonradiative Voltage Loss

Lin Xie, Ai Lan, Qun Gu, Shuncheng Yang, Wei Song, Jinfeng Ge, Rong Zhou, Zhenyu Chen, Jianqi Zhang, Xiaoli Zhang, Daobin Yang, Bencan Tang, Tao Wu, Ziyi Ge

ACS Energy Letters· Volume 8· Issue 1
Publisher page

Abstract

A ternary strategy is considered to be an efficient and simple way to further enhance the performance of organic photovoltaics (OPVs). However, the “structure–performance” correlation of the third component in the ternary device has rarely been clearly understood from the aspect of the material’s eigenproperties. Herein, this relationship is investigated in depth by employing three asymmetric skeleton nonfullerene acceptors as the third component in the host system of PM6:BTP-eC9, respectively. Compared with TB-S and TB-S1, the alkoxy-substituted TB-S1-O possesses a more stable planar conformation, a higher surface energy, and a larger ordered stacking domain due to the existence of noncovalent conformational locking (O···H). Consequently, the PM6:BTP-eC9:TB-S1-O device exhibits the highest efficiency of 18.14% as compared with the devices based on PM6:BTP-eC9:TB-S (16.16%) and PM6:BTP-eC9:TB-S1 (16.18%). Most interestingly, only the PM6:BTP-eC9:TB-S1-O device can maintain the positive effect of VOC improvement, because a significant reduction in nonradiative voltage loss can be observed in this device. Our systematic study reveals that alkoxy substitution on an asymmetric backbone is an efficient method to construct the third component for high-performance ternary organic solar cells.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Organic Electronics and Photovoltaics · Perovskite Materials and Applications · Conducting polymers and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Zhejiang Engineering Research Center for Energy Optoelectronic Materials and Devices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo315201, People’s Republic of China

Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Ningbo China, Ningbo315100, People’s Republic of China

CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing100190, People’s Republic of China

School of Materials Science and Engineering, Zhengzhou University, Zhengzhou450001, People’s Republic of China

Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing100049, People’s Republic of China

Nottingham Ningbo China Beacons of Excellence Research and Innovation Institute, Ningbo315100, People’s Republic of China

Key Laboratory for Carbonaceous Wastes Processing and Process Intensification Research of Zhejiang Province, Department of Chemical and Environmental Engineering, The University of Nottingham Ningbo China, Ningbo315100, People’s Republic of China

Funding

Natural Science Foundation of Ningbo · Ministry of Science and Technology of the People's Republic of China · Ningbo Municipal Bureau of Science and Technology · National Natural Science Foundation of China · Chinese Academy of Sciences · Natural Science Foundation of Zhejiang Province

References (60)

Show source-provided references
1. 10.1002/anie.20220902110.1002/anie.202209021 ↗
2. 10.1002/adfm.20210269410.1002/adfm.202102694 ↗
3. 10.1021/acsami.1c0213710.1021/acsami.1c02137 ↗
4. 10.1021/acsami.1c0265210.1021/acsami.1c02652 ↗
5. 10.1002/adma.20220275210.1002/adma.202202752 ↗
6. 10.1039/D2TA00576J10.1039/D2TA00576J ↗
7. 10.1021/acsami.2c0779110.1021/acsami.2c07791 ↗
8. 10.1016/j.nanoen.2021.10577010.1016/j.nanoen.2021.105770 ↗
9. 10.1016/j.nanoen.2022.10741410.1016/j.nanoen.2022.107414 ↗
10. 10.1002/aenm.20200265310.1002/aenm.202002653 ↗
11. 10.1002/adma.20190820510.1002/adma.201908205 ↗
12. 10.1016/j.joule.2020.03.02310.1016/j.joule.2020.03.023 ↗
13. 10.1002/aenm.20200314110.1002/aenm.202003141 ↗
14. 10.1039/D2EE00595F10.1039/D2EE00595F ↗
15. 10.1038/s41566-019-0573-510.1038/s41566-019-0573-5 ↗
16. 10.1002/adma.20220275210.1002/adma.202202752 ↗
17. 10.1007/s11426-022-1256-810.1007/s11426-022-1256-8 ↗
18. 10.1007/s11426-021-1180-610.1007/s11426-021-1180-6 ↗
19. 10.1038/s41578-019-0093-410.1038/s41578-019-0093-4 ↗
20. 10.1016/j.nanoen.2021.10691510.1016/j.nanoen.2021.106915 ↗
21. 10.1002/solr.20210080610.1002/solr.202100806 ↗
22. 10.1002/adma.20190221010.1002/adma.201902210 ↗
23. 10.1039/D1EE03989J10.1039/D1EE03989J ↗
24. 10.1039/C8TA04665D10.1039/C8TA04665D ↗
25. 10.1038/nenergy.2016.8910.1038/nenergy.2016.89 ↗
26. 10.1038/s41563-018-0128-z10.1038/s41563-018-0128-z ↗
27. 10.1021/acsenergylett.0c0053710.1021/acsenergylett.0c00537 ↗
28. 10.1002/adma.20200116010.1002/adma.202001160 ↗
29. 10.1002/adfm.20200045610.1002/adfm.202000456 ↗
30. 10.1039/D0TA03985C10.1039/D0TA03985C ↗
31. 10.1039/D2EE01848A10.1039/D2EE01848A ↗
32. 10.1002/adma.20170352710.1002/adma.201703527 ↗
33. 10.1002/adma.20211014710.1002/adma.202110147 ↗
34. 10.1002/aenm.20220107610.1002/aenm.202201076 ↗
35. 10.1002/adfm.20211185510.1002/adfm.202111855 ↗
36. 10.1039/C9TA07634D10.1039/C9TA07634D ↗
37. 10.1002/aenm.20200314110.1002/aenm.202003141 ↗
38. 10.1021/jacs.7b0056610.1021/jacs.7b00566 ↗
39. 10.1039/D1TA02075G10.1039/D1TA02075G ↗
40. 10.1021/ma070712a10.1021/ma070712a ↗
41. 10.1021/acsami.0c0384210.1021/acsami.0c03842 ↗
42. 10.1016/j.nanoen.2018.11.01010.1016/j.nanoen.2018.11.010 ↗
43. 10.1016/j.nanoen.2019.02.03810.1016/j.nanoen.2019.02.038 ↗
44. 10.1002/aenm.20120063710.1002/aenm.201200637 ↗
45. 10.1002/aenm.20150228510.1002/aenm.201502285 ↗
46. 10.1002/adma.20180045310.1002/adma.201800453 ↗
47. 10.1002/anie.20220032910.1002/anie.202200329 ↗
48. 10.1103/PhysRevB.81.12520410.1103/PhysRevB.81.125204 ↗
49. 10.1039/D1EE01864G10.1039/D1EE01864G ↗
50. 10.1002/adma.20190230210.1002/adma.201902302 ↗
51. 10.1016/j.nanoen.2021.10596310.1016/j.nanoen.2021.105963 ↗
52. 10.1021/acsenergylett.2c0143810.1021/acsenergylett.2c01438 ↗
53. 10.1002/adma.20210083010.1002/adma.202100830 ↗
54. 10.1016/j.jcis.2021.05.03310.1016/j.jcis.2021.05.033 ↗
55. 10.1002/adma.20190564510.1002/adma.201905645 ↗
56. 10.1016/j.cej.2021.12927610.1016/j.cej.2021.129276 ↗
57. 10.1002/anie.20180978110.1002/anie.201809781 ↗
58. 10.1107/S002188980904012610.1107/S0021889809040126 ↗
59. 10.1351/pac19946608166710.1351/pac199466081667 ↗
60. 10.1038/s41467-022-30225-710.1038/s41467-022-30225-7 ↗